A wireless signal interference reduction device includes a digital signal converter, an output device, a first adjustable resistor, and a second adjustable resistor. The wireless signal interference reduction device records an initial SNR value, records an SNR value of wireless reception in real-time at a preset interval when wired data transmission is turned on, determines whether a difference between the initial SNR value and the real-time SNR value is less than a preset value, continuously obtains the real-time SNR value at the preset interval to obtain the difference between the initial SNR value and the real-time SNR value if the difference between the initial SNR value and the real-time SNR value is less than the preset value, and reduces the wired transmission bandwidth by one step value if the difference between the initial SNR value and the real-time SNR value is not less than the preset value.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A wireless signal interference reduction method implemented in a wireless electronic device comprising a digital signal converter, an output device, a first adjustable resistor, and a second adjustable resistor, the method comprising: obtaining a signal to noise ratio (SNR) value of wireless reception under initial conditions and recording the obtained SNR value as an initial SNR value; obtaining an SNR value of wireless reception, a data reception status of the digital signal converter, and a data reception status of the output device in real-time at a preset interval when wired data transmission is turned on, and recording the SNR value as a real-time SNR value; determining whether a difference between the initial SNR value and the real-time SNR value is less than a preset value, whether the data reception status of the digital signal converter is normal, and whether the data reception status of the output device is normal; continuously obtaining the real-time SNR value at the preset interval to obtain the difference between the initial SNR value and the real-time SNR value, wherein if the difference between the initial SNR value and the real-time SNR value is less than the preset value, the data receiving condition of the digital signal converter is normal, and the data receiving condition of the output device is normal; reducing the resistance of the first adjustable resistor by one step value if the data receiving condition of the digital signal converter is not normal; reducing the wired transmission bandwidth by one step value if the difference between the initial SNR value and the real-time SNR value is not less than the preset value; and reducing the resistance of the second adjustable resistor by one step value if the receiving condition of the output device is not normal.
2. The wireless signal interference reduction method of claim 1 , the wireless electronic device further comprising a baseband chip, wherein: the first adjustable resistor is coupled in series on a data bus between the baseband chip and the digital signal converter; and the second adjustable resistor is coupled in series on an output bus between the digital signal converter and the output device.
3. The wireless signal interference reduction method of claim 1 , wherein the initial conditions comprise: a resistance of the first adjustable resistor is such that a wired transmission error rate is lower than a maximum resistance of an industry standard of wired transmission; a resistance of the second adjustable resistor is such that a wired transmission error rate is lower than the maximum resistance of an industry standard of wired transmission; a wireless transmission channel is set to a transmission channel of a lowest channel number; and a wired transmission bandwidth is set to a bandwidth of a corresponding wired transmission when a resistance of each of the first adjustable resistor and the second adjustable resistor is at the maximum resistance.
4. The wireless signal interference reduction method of claim 1 , further comprising: switching the channel for wireless transmission if the data receiving condition of the digital signal converter is not normal and the resistance of each of the first adjustable resistor and the second adjustable resistor is at a minimum resistance; and determining that the transmission line is too long or the output device is faulty if the resistance of the first adjustable resistor and the resistance of the second adjustable resistor are at the minimum resistance and the receiving condition of the output device is not normal.
5. The wireless signal interference reduction method of claim 4 , wherein the minimum resistance of the first adjustable resistor is configured by: initial value setting step: when the first adjustable resistor has a resistance of 0 and the second adjustable resistor has a resistance of 0, the wired transmission line is closed, and the wireless channel of the digital signal converter is set to a lowest transmission channel; first original SNR value obtaining step: a wireless transmission output power of a wireless data transmitter is adjusted, so that a received signal strength indication (RSSI) of a wireless signal received by the digital signal converter is higher than a preset range of wireless reception sensitivity, and then an SNR value of the wireless signal received by the digital signal converter is obtained and recorded as a first original SNR value; first SNR value obtaining step: the wired transmission line where the first adjustable resistor is located is opened, a wired transmission bandwidth is set to the maximum resistance, and an SNR value of wireless reception is obtained and recorded as a first SNR value; first determining step: whether a difference between the first original SNR value and the first SNR value is less than or equal to a preset value is determined; first executing step: if the difference between the first original SNR value and the first SNR value is greater than the preset value, the resistance of the first adjustable resistor is increased by one step value; second executing step: if the difference between the first original SNR value and the first SNR value is less than or equal to the preset value, the resistance of the first adjustable resistor is recorded as the minimum resistance of the first adjustable resistor; second determining step: after obtaining the minimum resistance of the resistance of the first adjustable resistor, whether the wired transmission bandwidth is the lowest is determined; third executing step: if the wired transmission bandwidth is not the lowest, the wired transmission bandwidth is reduced by one step value, and the first SNR value obtaining step is repeated; third determining step: if the wired transmission bandwidth is the lowest, whether the channel number of wireless transmission is the highest transmission channel number is determined; fourth executing step: if the channel number of wireless transmission is not the highest transmission channel number, the channel number of wireless transmission is increased by one, and the first original SNR value obtaining step is repeated; and fifth executing step: if the channel number of wireless transmission is the highest transmission channel number, the minimum resistance, the wired transmission bandwidth, and the channel number of wireless transmission of the first adjustable resistor are recorded.
6. The wireless signal interference reduction method of claim 5 , wherein the wireless transmission output power of the wireless data transmitter is adjusted by: controlling the output power of the wireless data transmitter through a wireless channel at a wireless data receiver; wherein an attenuator is coupled between the wireless data transmitter and the wireless data receiver.
7. The wireless signal interference reduction method of claim 4 , wherein a maximum resistance of the first adjustable resistor is configured by: initial value setting step: the channel number of wireless transmission is set to a lowest transmission channel when the first adjustable resistor has a resistance of 0 and the second adjustable resistor has a resistance of 0; first receiving step: a wired transmission line where the first adjustable resistor is located is opened, a wired transmission bandwidth is set to a maximum resistance, and a wired digital signal receiving condition of the digital signal converter is obtained; first determining step: whether the wired digital signal receiving condition of the digital signal converter is normal is determined; first executing step: if the wired digital signal receiving condition of the digital signal converter is normal, the resistance of the first adjustable resistor is increased by one step value; second executing step: if the wired digital signal receiving condition of the digital signal converter is not normal, the resistance of the first adjustable resistor is decreased by one step value and set as the maximum resistance of the first adjustable resistor; second determining step: whether the wired transmission bandwidth of the first adjustable resistor is a minimum resistance is determined; third executing step: if the wired transmission bandwidth of the first adjustable resistor is not the minimum resistance, the wired transmission bandwidth is reduced by one step value; and fourth executing step: if the wired transmission bandwidth is the minimum resistance, the maximum resistance and the wired transmission bandwidth of the first adjustable resistor are recorded.
8. The wireless signal interference reduction method of claim 4 , wherein the minimum resistance of the second adjustable resistor is configured by: initial value setting step: when the first adjustable resistor has a resistance of 0 and the second adjustable resistor has a resistance of 0, the wired transmission line is closed, and the wireless channel of the output device is set to a lowest transmission channel; second original SNR value obtaining step: a wireless transmission output power of the wireless data transmitter is adjusted, so that a received signal strength indication (RSSI) of a wireless signal received by the output device is higher than a preset range of wireless reception sensitivity, and then an SNR value of the wireless signal received by the output device is obtained and recorded as a second original SNR value; second SNR value obtaining step: the wired transmission line where the second adjustable resistor is located is opened, and the wired transmission bandwidth is set to a maximum resistance; with the resistance of the first adjustable resistor set to the maximum resistance, the SNR value of wireless reception is obtained and recorded as the second SNR value; first determining step: whether a difference between the second original SNR value and the second SNR value is less than or equal to a preset value is determined; first executing step: if the difference between the second original SNR value and the second SNR value is greater than the preset value, the resistance of the second adjustable resistor is increased by one step value; second executing step: if the difference between the second original SNR value and the second SNR value is less than or equal to the preset value, the resistance of the second adjustable resistor is recorded as the minimum resistance of the first adjustable resistor; second determining step: after obtaining the minimum resistance of the resistance of the second adjustable resistor, whether the wired transmission bandwidth is the lowest is determined; third executing step: if the wired transmission bandwidth is not the lowest, the wired transmission bandwidth is reduced by one step value, and the second original SNR value obtaining step is repeated; third determining step: if the wired transmission bandwidth is the lowest, whether a channel number of wireless transmission is a highest transmission channel number is determined; fourth executing step: if the channel number of wireless transmission is not the highest transmission channel number, the channel number of wireless transmission is increased by one, and the second original SNR value obtaining step is repeated; and fifth executing step: if the channel number of wireless transmission is the highest transmission channel number, the minimum resistance, the wired transmission bandwidth, and the channel number of wireless transmission of the second adjustable resistor are recorded.
9. The wireless signal interference reduction method of claim 4 , wherein a maximum resistance of the second resistor is configured by: initial value setting step: when the first adjustable resistor has a resistance of 0 and the second adjustable resistor has a resistance of 0, a number of channels for wireless transmission is set to a lowest number; first receiving step: a wired transmission line where the second adjustable resistor is located is opened, and a wired transmission bandwidth is set to a maximum resistance; a wired digital signal receiving condition of the output device is obtained at a maximum resistance of the first adjustable resistor; first determining step: whether the wired digital signal receiving condition of the output device is normal is determined; first executing step: if the wired digital signal receiving condition of the output device is normal, the resistance of the second adjustable resistor is increased by one step value; second executing step: if the wired digital signal receiving condition of the output device is not normal, the resistance of the second adjustable resistor is reduced by one step value and set as a maximum resistance of the second adjustable resistor; second determining step: whether the wired transmission bandwidth of the second adjustable resistor is a minimum resistance is determined; third executing step: if the wired transmission bandwidth of the second adjustable resistor is not the minimum resistance, the wired transmission bandwidth is reduced by one step value; and fourth executing step: if the wired transmission bandwidth of the second adjustable resistor is the minimum resistance, the maximum resistance and the wired transmission bandwidth of the second adjustable resistor are recorded.
10. A wireless signal interference reduction device comprising: a digital signal converter; an output device; a first adjustable resistor; and a second adjustable resistor; wherein the wireless signal interference reduction device is configured for: obtaining a signal to noise ratio (SNR) value of wireless reception under initial conditions and recording the obtained SNR value as an initial SNR value; obtaining an SNR value of wireless reception, a data reception status of the digital signal converter, and a data reception status of the output device in real-time at a preset interval when wired data transmission is turned on, and recording the SNR value as a real-time SNR value; determining whether a difference between the initial SNR value and the real-time SNR value is less than a preset value, whether the data reception status of the digital signal converter is normal, and whether the data reception status of the output device is normal; continuously obtaining the real-time SNR value at the preset interval to obtain the difference between the initial SNR value and the real-time SNR value, wherein if the difference between the initial SNR value and the real-time SNR value is less than the preset value, the data receiving condition of the digital signal converter is normal, and the data receiving condition of the output device is normal; reducing the resistance of the first adjustable resistor by one step value if the data receiving condition of the digital signal converter is not normal; reducing the wired transmission bandwidth by one step value if the difference between the initial SNR value and the real-time SNR value is not less than the preset value; and reducing the resistance of the second adjustable resistor by one step value if the receiving condition of the output device is not normal.
11. The wireless signal interference reduction device of claim 10 , further comprising a baseband chip, wherein: the first adjustable resistor is coupled in series on a data bus between the baseband chip and the digital signal converter; and the second adjustable resistor is coupled in series on an output bus between the digital signal converter and the output device.
12. The wireless signal interference reduction device of claim 10 , wherein the initial conditions comprise: a resistance of the first adjustable resistor is such that a wired transmission error rate is lower than a maximum resistance of an industry standard of wired transmission; a resistance of the second adjustable resistor is such that a wired transmission error rate is lower than the maximum resistance of an industry standard of wired transmission; a wireless transmission channel is set to a transmission channel of a lowest channel number; and a wired transmission bandwidth is set to a bandwidth of a corresponding wired transmission when a resistance of each of the first adjustable resistor and the second adjustable resistor is at the maximum resistance.
13. The wireless signal interference reduction device of claim 10 , wherein the method implemented by the wireless signal interference reduction device further comprises: switching the channel for wireless transmission if the data receiving condition of the digital signal converter is not normal and the resistance of the first adjustable resistor and the resistance of the second adjustable resistor are at the minimum resistance; and determining that the transmission line is too long or the output device is faulty if the resistance of the first adjustable resistor and the resistance of the second adjustable resistor are at the minimum resistance and the receiving condition of the output device is not normal.
14. The wireless signal interference reduction device of claim 13 , wherein the minimum resistance of the first adjustable resistor is configured by: initial value setting function: when the first adjustable resistor has a resistance of 0 and the second adjustable resistor has a resistance of 0, the wired transmission line is closed, and the wireless channel of the digital signal converter is set to a lowest transmission channel; first original SNR value obtaining function: a wireless transmission output power of a wireless data transmitter is adjusted, so that a received signal strength indication (RSSI) of a wireless signal received by the digital signal converter is higher than a preset range of wireless reception sensitivity, and then an SNR value of the wireless signal received by the digital signal converter is obtained and recorded as a first original SNR value; first SNR value obtaining function: the wired transmission line where the first adjustable resistor is located is opened, a wired transmission bandwidth is set to the maximum resistance, and an SNR value of wireless reception is obtained and recorded as a first SNR value; first determining function: whether a difference between the first original SNR value and the first SNR value is less than or equal to a preset value is determined; first executing function: if the difference between the first original SNR value and the first SNR value is greater than the preset value, the resistance of the first adjustable resistor is increased by one step value; second executing function: if the difference between the first original SNR value and the first SNR value is less than or equal to the preset value, the resistance of the first adjustable resistor is recorded as the minimum resistance of the first adjustable resistor; second determining function: after obtaining the minimum resistance of the resistance of the first adjustable resistor, whether the wired transmission bandwidth is the lowest is determined; third executing function: if the wired transmission bandwidth is not the lowest, the wired transmission bandwidth is reduced by one step value, and the first SNR value obtaining function is repeated; third determining function: if the wired transmission bandwidth is the lowest, whether the channel number of wireless transmission is the highest transmission channel number is determined; fourth executing function: if the channel number of wireless transmission is not the highest transmission channel number, the channel number of wireless transmission is increased by one, and the first original SNR value obtaining function is repeated; and fifth executing function: if the channel number of wireless transmission is the highest transmission channel number, the minimum resistance, the wired transmission bandwidth, and the channel number of wireless transmission of the first adjustable resistor are recorded.
15. The wireless signal interference reduction device of claim 14 , wherein the wireless transmission output power of the wireless data transmitter is adjusted by: controlling the output power of the wireless data transmitter through a wireless channel at a wireless data receiver; wherein an attenuator is coupled between the wireless data transmitter and the wireless data receiver.
16. The wireless signal interference reduction device of claim 13 , wherein a maximum resistance of the first adjustable resistor is configured by: initial value setting function: the channel number of wireless transmission is set to the lowest transmission channel when the first adjustable resistor has a resistance of 0 and the second adjustable resistor has a resistance of 0; first receiving function: a wired transmission line where the first adjustable resistor is located is opened, a wired transmission bandwidth is set to a maximum resistance, and a wired digital signal receiving condition of the digital signal converter is obtained; first determining function: whether the wired digital signal receiving condition of the digital signal converter is normal is determined; first executing function: if the wired digital signal receiving condition of the digital signal converter is normal, the resistance of the first adjustable resistor is increased by one step value; second executing function: if the wired digital signal receiving condition of the digital signal converter is not normal, the resistance of the first adjustable resistor is decreased by one step value and set as the maximum resistance of the first adjustable resistor; second determining function: whether the wired transmission bandwidth of the first adjustable resistor is a minimum resistance is determined; third executing function: if the wired transmission bandwidth of the first adjustable resistor is not the minimum resistance, the wired transmission bandwidth is reduced by one step value; and fourth executing function: if the wired transmission bandwidth is the minimum resistance, the maximum resistance and the wired transmission bandwidth of the first adjustable resistor are recorded.
17. The wireless signal interference reduction device of claim 13 , wherein the minimum resistance of the second adjustable resistor is configured by: initial value setting function: when the first adjustable resistor has a resistance of 0 and the second adjustable resistor has a resistance of 0, the wired transmission line is closed, and the wireless channel of the output device is set to a lowest transmission channel; second original SNR value obtaining function: a wireless transmission output power of the wireless data transmitter is adjusted, so that a received signal strength indication (RSSI) of a wireless signal received by the output device is higher than a preset range of wireless reception sensitivity, and then an SNR value of the wireless signal received by the output device is obtained and recorded as a second original SNR value; second SNR value obtaining function: the wired transmission line where the second adjustable resistor is located is opened, and the wired transmission bandwidth is set to a maximum resistance; with the resistance of the first adjustable resistor set to the maximum resistance, the SNR value of wireless reception is obtained and recorded as the second SNR value; first determining function: whether a difference between the second original SNR value and the second SNR value is less than or equal to a preset value is determined; first executing function: if the difference between the second original SNR value and the second SNR value is greater than the preset value, the resistance of the second adjustable resistor is increased by one step value; second executing function: if the difference between the second original SNR value and the second SNR value is less than or equal to the preset value, the resistance of the second adjustable resistor is recorded as the minimum resistance of the first adjustable resistor; second determining function: after obtaining the minimum resistance of the resistance of the second adjustable resistor, whether the wired transmission bandwidth is the lowest is determined; third executing function: if the wired transmission bandwidth is not the lowest, the wired transmission bandwidth is reduced by one step value, and the second original SNR value obtaining function is repeated; third determining function: if the wired transmission bandwidth is the lowest, whether a channel number of wireless transmission is a highest transmission channel number is determined; fourth executing function: if the channel number of wireless transmission is not the highest transmission channel number, the channel number of wireless transmission is increased by one, and the second original SNR value obtaining function is repeated; and fifth executing function: if the channel number of wireless transmission is the highest transmission channel number, the minimum resistance, the wired transmission bandwidth, and the channel number of wireless transmission of the second adjustable resistor are recorded.
18. The wireless signal interference reduction device of claim 13 , wherein a maximum resistance of the second resistor is configured by: initial value setting function: when the first adjustable resistor has a resistance of 0 and the second adjustable resistor has a resistance of 0, a number of channels for wireless transmission is set to a lowest number; first receiving function: a wired transmission line where the second adjustable resistor is located is opened, and a wired transmission bandwidth is set to a maximum resistance; a wired digital signal receiving condition of the output device is obtained at a maximum resistance of the first adjustable resistor; first determining function: whether the wired digital signal receiving condition of the output device is normal is determined; first executing function: if the wired digital signal receiving condition of the output device is normal, the resistance of the second adjustable resistor is increased by one step value; second executing function: if the wired digital signal receiving condition of the output device is not normal, the resistance of the second adjustable resistor is reduced by one step value and set as a maximum resistance of the second adjustable resistor; second determining function: whether the wired transmission bandwidth of the second adjustable resistor is a minimum resistance is determined; third executing function: if the wired transmission bandwidth of the second adjustable resistor is not the minimum resistance, the wired transmission bandwidth is reduced by one step value; and fourth executing function: if the wired transmission bandwidth of the second adjustable resistor is the minimum resistance, the maximum resistance and the wired transmission bandwidth of the second adjustable resistor are recorded.
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August 16, 2019
July 28, 2020
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